Question bank

A 5-week-old infant presents with a 1-week history of progressive nonbilious emesis, associated with a 24-hour history of decreased urine output. The infant continues to be active and eager to feed. On examination, the infant has a sunken fontanelle and decreased skin turgor. The abdomen is scaphoid, and with a test feed, there is a visible peristaltic wave in the epigastrium. Which of the following is the most likely diagnosis?

A thin, 37-year-old patient undergoes a total abdominal hysterectomy and bilateral salpingooophorectomy for chronic menometrorrhagia. The procedure lasts 2 hours. ABalfour retractor is utilized intraoperatively to assist with exposure. On the morning of postoperative day 2, the patient stands to get out of bed and collapses on the floor, her right lower extremity is unable to support her weight. You are called to examine her. Your neurologic examination suggests an absence of deep tendon reflex in the right lower extremity, absence of cutaneous sensation to the anterior and medial thigh, and an inability to flex at the hip and extend at the knee. Which of the following is the most likely etiology for this presentation postoperatively?

A 24-year-old woman has a MSAFP of 0.5 MOM (multiples of the median) at 17 weeks' gestation. Which of the following fetal abnormalities is most likely to occur with this MSAFP?

A 26-year-old previously healthy man was pinned under a crane at a construction site. After a prolonged extrication, he was brought to the emergency department, immobilized on a back board and receiving 100% oxygen by mask. He is alert and complaining of chest pain with respiratory effort. On examination, he is found to have an oxygen saturation of 90% by pulse oximetry, shallow respirations at a respiratory rate of 35/min, heart rate of 120 beats/min, and a blood pressure of 85/60 mmHg. The trachea is deviated to the right. There is tenderness and crepitation over the left chest wall, asymmetric chest wall movement, and decreased air entry over the left lung field. Which of the following is the most appropriate next step in the initial evaluation and management of this patient?

You are asked to see an inpatient for a gynecologic consultation. The patient is an 85-year-old female who was admitted s/p her third stroke. She has a history of dementia, coronary artery disease, insulin-dependent diabetes, and hypertension. She resides in a local nursing home and normally requires extensive nursing assistance as she is unable to care for herself. While in the hospital, the nursing staff observed a small amount of new vaginal bleeding. Her past OB/GYN history is unknown and no family members are immediately available for clarification. On physical examination, she is lying comfortably in bed, awake but not oriented to person, place, or time. She is unable to speak coherently, and becomes combative when you attempt to examine her abdomen. She quiets down when you step out of the room. You then receive a telephone call from someone who says she is the patient's granddaughter, inquiring as to the patient's status and your recommendations. What should be yor response?

In your role as a physician in a community health center, you agree to perform sports preparticipation examinations on students from the local high school. You have several scheduled for today. Your first appointment is with a 16-year-old male who is planning to run on the cross-country team in the Fall and play baseball in the Spring. He reports that one time he "blacked out" while running, but he has never had chest pain while exercising and he is one of the top runners on the team. He has no known medical history, denies alcohol, tobacco, recreational drug, or performance-enhancing drug use. He has a cousin who died at the age of 21 of "some kind of heart disease," although your patient is not sure of any details. On examination, he is healthy appearing and has normal vital signs, with a pulse rate of 72 and a blood pressure of 100/65. Auscultation of his heart reveals no cardiac murmur while he is lying down, a soft systolic murmur when he stands which increases on having the patient perform a Valsalva maneuver. The remainder of his examination is normal Your last patient of the day is a 16-year-old male who plans to play on the football team. He has no complaints today, no significant medical history, and no concerning family history. He denies the use of tobacco, alcohol, or any kinds of drugs. His physical examination is entirely normal. Review of his vaccinations reveals that he had a Td vaccination 3 years ago, a varicella vaccination at age 17 months, and 2 MMR vaccinations at age 17 months and 5 years. Appropriate management at this time would include which of the following?

Which feature of fibrocystic disease of the breast is associated with the greatest risk of developing breast cancer?

Of the following conditions, which results in the most deaths each year in the United States?

A woman at 31 weeks' gestation complains of feeling dizzy and lightheaded when she lies on her back. She is Rh negative but denies vaginal bleeding, abdominal trauma, or abdominal pain. The diagnosis is probably the supine hypotensive syndrome. During this woman's labor, the nurse describes the presenting part as engaged when the woman is 6 cm dilated. Which of the following is the most accurate definition of engagement in a woman with a vertex presentation?

An 11-month-old girl presents to your office with a fever of 39°C she has had for 2 days. She has also vomited frequently and had decreased fluid intake. She looked tired and ill but on examination, had no apparent source of infection. She appeared to be 510% dehydrated. Her urinalysis shows a urine specific gravity of 1.030, trace blood, and protein. Nitrite and leukocyte esterase are both positive. Microscopic examination of unspun urine shows >100 white blood cells (WBCs) and 05 red blood cells (RBCs) per high-power field, as well as many bacteria. Aurine culture is sent. Which of the following is the most appropriate management plan?

While you are working in the community health center, a 40-year-old male presents to you as a referral from the dental clinic. The patient reported on the intake history form at the dental office that he had rheumatic fever at the age of 7. The dentist refused to allow him to have a dental examination and cleaning until he was cleared by a medical doctor. Other than rheumatic fever, the patient has no medical history and does not take any medications. He denies chest pain, palpitations, dyspnea, or any other symptoms. On examination, he has normal vital signs and a normal general examination. On auscultation of his heart, you hear a 2/6 systolic ejection murmur at the left upper sternal border without radiation. Review of his chart shows that he had an echocardiogram approximately 9 months ago that revealed mild mitral valve prolapse without evidence of mitral regurgitation, but otherwise normal valves and cardiac function For which of the following cardiac conditions is bacterial endocarditis prophylaxis recommended?

Your next patient is a 4-month-old infant who is returning to have her ear checked. You diagnosed her with otitis media 2 weeks ago, and she has taken 10 days of amoxicillin. She is feeling well, and her mother's only concern is that she has developed a diaper rash over the last 3 days. The mother has been using emollient creams on it which have not helped. On physical examination, there are no abnormal findings except for the rash. Which of the following is the most likely diagnosis?

While you are working in the community health center, a 40-year-old male presents to you as a referral from the dental clinic. The patient reported on the intake history form at the dental office that he had rheumatic fever at the age of 7. The dentist refused to allow him to have a dental examination and cleaning until he was cleared by a medical doctor. Other than rheumatic fever, the patient has no medical history and does not take any medications. He denies chest pain, palpitations, dyspnea, or any other symptoms. On examination, he has normal vital signs and a normal general examination. On auscultation of his heart, you hear a 2/6 systolic ejection murmur at the left upper sternal border without radiation. Review of his chart shows that he had an echocardiogram approximately 9 months ago that revealed mild mitral valve prolapse without evidence of mitral regurgitation, but otherwise normal valves and cardiac function In patients in whom it is required, for which of the following dental procedures is bacterial endocarditis prophylaxis recommended?

A 13-year-old boy is brought into the emergency room with a laceration of his right arm. According to his parents, he received the injury when he fell on the ground while playing at the family farm about 1 hour ago. He has no known history of any medical problems. His parents say that they haven't brought him to the doctor in years. On questioning, they report that he only received one of his "baby shots" and they are not sure which one that was. On examination, he is healthy appearing. He is appropriately apprehensive but calm and consolable. His right arm has a 5 cm linear laceration with visible soil particles in and about the wound. The remainder of his examination is unremarkable. You carefully clean and irrigate the wound and then primarily repair the laceration with sutures. After the treatment given above, what would be the recommended "catch-up" immunization schedule to protect against tetanus?

In your role as a physician in a community health center, you agree to perform sports preparticipation examinations on students from the local high school. You have several scheduled for today. Your first appointment is with a 16-year-old male who is planning to run on the cross-country team in the Fall and play baseball in the Spring. He reports that one time he "blacked out" while running, but he has never had chest pain while exercising and he is one of the top runners on the team. He has no known medical history, denies alcohol, tobacco, recreational drug, or performance-enhancing drug use. He has a cousin who died at the age of 21 of "some kind of heart disease," although your patient is not sure of any details. On examination, he is healthy appearing and has normal vital signs, with a pulse rate of 72 and a blood pressure of 100/65. Auscultation of his heart reveals no cardiac murmur while he is lying down, a soft systolic murmur when he stands which increases on having the patient perform a Valsalva maneuver. The remainder of his examination is normal. At this point, what is your most appropriate management option?

Schedules for the routine immunization of young children are developed jointly by the Advisory Commission on Immunization Practices (a federal commission) and the American Academy of Pediatrics. Which of the following vaccines is recommended for routine vaccination for all children in the United States?

Which of the following statements regarding vaccinations of pregnant women is true?

A 30-year-old asymptomatic male presents to your office because his father just had a heart attack. He is concerned that he may have inherited his father's condition because a cholesterol level test done at his work site last year was 220 mg/dL. You review his history and find that he smokes 25 cigarettes a day, eats mostly at fast food restaurants, sits at a desk job, and has no regular moderate intensity physical activities. His blood pressure is 130/85 mmHg and his body mass index (BMI) is 26. Which of the following is the best first recommendation? electrocardiography (ECG)

A 50-year-old male presents to your office after reading an article on the Internet stating that a recent study showed that the drug finasteride can prevent prostate cancer. He asks you to prescribe this medication for him. You review the article and find the following information: a randomizedcontrolled trial of men over the age of 55 with normal prostate-specific antigen (PSA) readings was performed comparing finasteride and a placebo. At the end of the study, 18% of the men in the finasteride group and 24% of the men in the placebo group had developed prostate cancer. How many men need to be treated with finasteride to prevent one case of prostate cancer (NNT)?

When making recommendations to a state general assembly against routine premarital screening, the State Health Commissioner used the following data to arrive at his conclusions. The state had a young adult population of 100,000. Their actual prevalence of human immunodeficiency virus (HIV) infection was 1 per 1000. The best screening test available had a sensitivity of 98% and a specificity of 95%. How many people would have screened as false negative?